My Jack Russell was having seizures. ..no rhyhm or reason when or why. We switched her to BB and it was night and day. She has never had another seizure and that was almost 10 years ago. Every cat and dog in our house is fed BB. I can’t complain
All humans have their preferences for their pets, I suppose. I decided that since Purina has been in the animal chow business for a hundred and some years, they must know what they are doing. And it was what my grandparents and great grands used on their farms, so that’s my choice for my dogs. They are happy and healthy, so I will stick with it. YMMV